Zazi is accused of conspiring to destroy the items with the intent to obstruct a grand jury investigating federal crimes of terrorism.

The elder Zazi is already charged in U.S. District Court in Denver with lying to FBI agents who questioned him about his son’s activities.

Prosecutors filed a motion to dismiss that case today in light of the new indictment in New York City. A pretrial hearing that was scheduled to begin this afternoon in Denver was canceled.

Instead, Mohammed Zazi appeared in custody in Denver for an initial hearing on the new indictment.

US Magistrate Michael Watanabe read the charge of conspiracy to obstruct justice.

Zazi waived an identity hearing and the judge ordered U.S. Marshals take him to New York to answer to the charge there.

Zazi faces 20 years in prison if convicted.

Najibullah Zazi is accused of conspiring to make a weapon of mass destruction and is facing trial in New York City.

Prosecutors believe the younger Zazi learned to make bombs at an al-Qaeda training camp in Pakistan in 2008 and that he traveled from his apartment in Aurora to New York on Sept. 9 and 10 to carry out a plan.

Surveillance video and receipts obtained by the FBI show Zazi purchased products at beauty-supply stores in the Denver area that contain components used to make hydrogen-peroxide explosives.

Investigators also believe Zazi had rented an Aurora motel suite twice in an effort to cook some of the chemicals on a stove.